What was found
(CAN) WHILE FLIGHT CREW WHERE CONDUCTING A GROUND RUN, MAINTENANCE ON THE GROUND NOTED THE RT ELEVATOR WAS MOVING UP AND DOWN EXCESSIVELY. UPON INVESTIGATION, MAINTENANCE FOUND BRACKET P/N C6TPM1022-28 WITH RIVETS WORKING AND SEVERAL WHERE ACTUALLY MISSING. THIS BRACKET IS THE PART OF THE ELEVATOR HINGE THAT IS RIVETED TO THE HORIZONTAL STABILIZER. ALL MISSING, LOOSE OR DAMAGED FASTNERS WHERE REPLACED AND THE AIRCRAFT RETURNED TO SERVICE. THE COMPANY HAS ISSUED A FLEET INSPECTION OF ALL OTHER TWIN OTTERS. (TC NR 20070219008)